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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276604Generated: October 26, 2026

Acetamide → 1-Aminocyclopentanemethanol

https://huagongshe.com/reaction/276604

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetamideHCID 178—
ReactantEthanolamineHCID 700—
ReactantAnilineHCID 6115—
Reactant2-EthylanilineHCID 11357—
ReactantN-PhenylbutanamideHCID 14323—
Reactant2-Ethyl-4-nitroanilineHCID 14819009—
Reactant2-Ethyl-4-nitrophenyl isothiocyanateHCID 18316418—
Reactant1-(Chloromethyl)cyclopentan-1-amine hydrochlorideHCID 69992485—
Product1-AminocyclopentanemethanolHCID 66307—
ProductHCID 178436838HCID 178436838—

Reaction Steps

2-Ethylaniline was protected as 2-ethylacetanilide according to Method A2a, Step 1. The acetamide was converted to 2-ethyl-4-nitroaniline, then deprotected according to Method A2a, Step 2. The aniline was converted to 2-ethyl-4-nitrophenyl isothiocyanate according to Method A2a, Step 3. 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was converted to 1-chloromethylcyclopentanamine HCl salt according to Method B7e. 1-Chloromethylcyclopentanamine HCl salt was reacted with 2-ethyl-4-nitrophenyl isothiocyanate according to Method C1e to give 2-(2-ethyl-4-nitrophenylphenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with cyclopentyl bromide according to Method D2b to give 2-(2-ethyl-4-nitrophenylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353006B1
Source datasetuspto-grants-2002_03
ORD IDord-cb416b9fa03e4586b13517955fe64e58
Source noteuspto-grants-2002_03